Finding the Fourth Proportional to 86,724.70, 119,682.42 and 48,998.14
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Solution
The fourth proportional to 86,724.70, 119,682.42 and 48,998.14 is: 67,618.75
Step by Step Solution
- Step 1: Write the proportion equation
86,724.70 : 119,682.42 = 48,998.14 : x - Step 2: Convert to fraction form
86,724.70/119,682.42 = 48,998.14/x - Step 3: Cross multiply
86,724.70x = 119,682.42 × 48,998.14 - Step 4: Simplify right side
86,724.70x = 5,864,215,970.70 - Step 5: Solve for x
x = 5,864,215,970.70/86,724.70 - Step 6: Final answer
x = 67,618.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.